Synthesis and Thermochromic Luminescence of Ag(I) Complexes Based on 4,6-Bis(diphenylphosphino)-Pyrimidine
Two Ag(I)-based metal-organic compounds have been synthesized exploiting 4,6-bis(diphenylphosphino)pyrimidine (L). The reaction of this ligand with AgNO<sub>3</sub> and AgBF<sub>4</sub> in acetonitrile produces dinuclear complex, [Ag<sub>2</sub>L<sub>2</s...
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MDPI AG
2020-08-01
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| Series: | Inorganics |
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| Online Access: | https://www.mdpi.com/2304-6740/8/9/46 |
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| author | Alexander V. Artem’ev Maria P. Davydova Alexey S. Berezin Denis G. Samsonenko |
| author_facet | Alexander V. Artem’ev Maria P. Davydova Alexey S. Berezin Denis G. Samsonenko |
| author_sort | Alexander V. Artem’ev |
| collection | DOAJ |
| description | Two Ag(I)-based metal-organic compounds have been synthesized exploiting 4,6-bis(diphenylphosphino)pyrimidine (L). The reaction of this ligand with AgNO<sub>3</sub> and AgBF<sub>4</sub> in acetonitrile produces dinuclear complex, [Ag<sub>2</sub>L<sub>2</sub>(MeCN)<sub>2</sub>(NO<sub>3</sub>)<sub>2</sub>] (<b>1</b>) and 1D coordination polymer, [Ag<sub>2</sub>L(MeCN)<sub>3</sub>]<i><sub>n</sub></i>(BF<sub>4</sub>)<sub>2<i>n</i></sub> (<b>2</b>), respectively. In complex <b>1</b>, µ<sub>2</sub>-P,P′-bridging coordination pattern of the ligand L is observed, whereas its µ<sub>4</sub>-P,N,N′,P′-coordination mode appears in <b>2</b>. Both compounds exhibit pronounced thermochromic luminescence expressed by reversible changing of the emission chromaticity from a yellow at 300 K to an orange at 77 K. At room temperature, the emission lifetimes of <b>1</b> and <b>2</b> are 15.5 and 9.4 µs, the quantum efficiency being 18 and 56%, respectively. On account of temperature-dependent experimental data, the phenomenon was tentatively ascribed to alteration of the emission nature from thermally activated delayed fluorescence at 300 K to phosphoresce at 77 K. |
| first_indexed | 2024-03-10T16:48:01Z |
| format | Article |
| id | doaj.art-9c8970f7d6fe417689cdfaebb5513954 |
| institution | Directory Open Access Journal |
| issn | 2304-6740 |
| language | English |
| last_indexed | 2024-03-10T16:48:01Z |
| publishDate | 2020-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Inorganics |
| spelling | doaj.art-9c8970f7d6fe417689cdfaebb55139542023-11-20T11:28:56ZengMDPI AGInorganics2304-67402020-08-01894610.3390/inorganics8090046Synthesis and Thermochromic Luminescence of Ag(I) Complexes Based on 4,6-Bis(diphenylphosphino)-PyrimidineAlexander V. Artem’ev0Maria P. Davydova1Alexey S. Berezin2Denis G. Samsonenko3Nikolaev Institute of Inorganic Chemistry, Siberian Branch of Russian Academy of Sciences, 3, Acad. Lavrentiev Ave., 630090 Novosibirsk, RussiaNikolaev Institute of Inorganic Chemistry, Siberian Branch of Russian Academy of Sciences, 3, Acad. Lavrentiev Ave., 630090 Novosibirsk, RussiaNikolaev Institute of Inorganic Chemistry, Siberian Branch of Russian Academy of Sciences, 3, Acad. Lavrentiev Ave., 630090 Novosibirsk, RussiaNikolaev Institute of Inorganic Chemistry, Siberian Branch of Russian Academy of Sciences, 3, Acad. Lavrentiev Ave., 630090 Novosibirsk, RussiaTwo Ag(I)-based metal-organic compounds have been synthesized exploiting 4,6-bis(diphenylphosphino)pyrimidine (L). The reaction of this ligand with AgNO<sub>3</sub> and AgBF<sub>4</sub> in acetonitrile produces dinuclear complex, [Ag<sub>2</sub>L<sub>2</sub>(MeCN)<sub>2</sub>(NO<sub>3</sub>)<sub>2</sub>] (<b>1</b>) and 1D coordination polymer, [Ag<sub>2</sub>L(MeCN)<sub>3</sub>]<i><sub>n</sub></i>(BF<sub>4</sub>)<sub>2<i>n</i></sub> (<b>2</b>), respectively. In complex <b>1</b>, µ<sub>2</sub>-P,P′-bridging coordination pattern of the ligand L is observed, whereas its µ<sub>4</sub>-P,N,N′,P′-coordination mode appears in <b>2</b>. Both compounds exhibit pronounced thermochromic luminescence expressed by reversible changing of the emission chromaticity from a yellow at 300 K to an orange at 77 K. At room temperature, the emission lifetimes of <b>1</b> and <b>2</b> are 15.5 and 9.4 µs, the quantum efficiency being 18 and 56%, respectively. On account of temperature-dependent experimental data, the phenomenon was tentatively ascribed to alteration of the emission nature from thermally activated delayed fluorescence at 300 K to phosphoresce at 77 K.https://www.mdpi.com/2304-6740/8/9/46Ag(I) complexesmetal-organic coordination polymersluminescencethermally activated delayed fluorescencephosphorescencepyrimidylphosphines |
| spellingShingle | Alexander V. Artem’ev Maria P. Davydova Alexey S. Berezin Denis G. Samsonenko Synthesis and Thermochromic Luminescence of Ag(I) Complexes Based on 4,6-Bis(diphenylphosphino)-Pyrimidine Inorganics Ag(I) complexes metal-organic coordination polymers luminescence thermally activated delayed fluorescence phosphorescence pyrimidylphosphines |
| title | Synthesis and Thermochromic Luminescence of Ag(I) Complexes Based on 4,6-Bis(diphenylphosphino)-Pyrimidine |
| title_full | Synthesis and Thermochromic Luminescence of Ag(I) Complexes Based on 4,6-Bis(diphenylphosphino)-Pyrimidine |
| title_fullStr | Synthesis and Thermochromic Luminescence of Ag(I) Complexes Based on 4,6-Bis(diphenylphosphino)-Pyrimidine |
| title_full_unstemmed | Synthesis and Thermochromic Luminescence of Ag(I) Complexes Based on 4,6-Bis(diphenylphosphino)-Pyrimidine |
| title_short | Synthesis and Thermochromic Luminescence of Ag(I) Complexes Based on 4,6-Bis(diphenylphosphino)-Pyrimidine |
| title_sort | synthesis and thermochromic luminescence of ag i complexes based on 4 6 bis diphenylphosphino pyrimidine |
| topic | Ag(I) complexes metal-organic coordination polymers luminescence thermally activated delayed fluorescence phosphorescence pyrimidylphosphines |
| url | https://www.mdpi.com/2304-6740/8/9/46 |
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